:root {
  --bg: #f4f5f7; --fg: #1d2330; --muted: #5d6677; --card: #ffffff; --line: #d9dde5;
  --accent: #4f46e5; --accent-fg: #ffffff; --err: #b3261e;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #12151c; --fg: #e8eaf0; --muted: #98a1b3; --card: #1b2030; --line: #2c3347;
    --accent: #8b85ff; --accent-fg: #12151c; --err: #ff8a80;
  }
}
:root[data-theme="dark"] {
  --bg: #12151c; --fg: #e8eaf0; --muted: #98a1b3; --card: #1b2030; --line: #2c3347;
  --accent: #8b85ff; --accent-fg: #12151c; --err: #ff8a80;
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--fg);
  font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  padding: 0 max(16px, env(safe-area-inset-right)) 24px max(16px, env(safe-area-inset-left));
}
main { max-width: 1040px; margin: 0 auto; }
h1 { margin: 24px 0 4px; font-size: 1.6rem; }
h2 { margin: 0 0 12px; font-size: 1.1rem; }
.sub, .hint { color: var(--muted); font-size: .9rem; }
.req { color: var(--accent); font-size: .85rem; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 16px; margin: 16px 0; }
.grid2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 12px 16px; }
label { display: flex; flex-direction: column; gap: 4px; font-size: .95rem; }
input[type=file], select { font: inherit; color: inherit; max-width: 100%; }
button {
  font: inherit; padding: 8px 14px; border-radius: 8px; border: 1px solid var(--line);
  background: var(--card); color: var(--fg); cursor: pointer; min-height: 40px;
}
button:disabled { opacity: .5; cursor: not-allowed; }
.screens { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; justify-items: center; }
figure { margin: 0; width: 100%; max-width: 480px; text-align: center; }
canvas { width: 100%; aspect-ratio: 3 / 2; background: #000; image-rendering: pixelated; border-radius: 6px; display: block; }
figcaption { margin-top: 6px; color: var(--muted); font-size: .9rem; }
.bar { display: flex; flex-wrap: wrap; gap: 8px 12px; align-items: end; margin-top: 16px; }
.bar label { flex-direction: row; align-items: center; gap: 8px; }
pre { background: var(--bg); border: 1px solid var(--line); border-radius: 8px; padding: 10px; overflow-x: auto; font-size: .8rem; }
table { border-collapse: collapse; font-size: .9rem; }
th, td { padding: 4px 12px 4px 0; text-align: left; border-bottom: 1px solid var(--line); }
#status.err { color: var(--err); }
details { margin-top: 12px; }

/* --- modos y red --- */
.tabs { display: flex; flex-wrap: wrap; gap: 8px 20px; }
.tabs label, label.inline { flex-direction: row; align-items: center; gap: 8px; }
input[type=text] { font: inherit; padding: 8px 10px; border: 1px solid var(--line); border-radius: 8px; background: var(--bg); color: var(--fg); text-transform: uppercase; letter-spacing: .08em; }
button.primary { background: var(--accent); color: var(--accent-fg); border-color: transparent; }
.status { margin-left: 8px; }
.status.err, #status.err { color: var(--err); }
.code { font: 600 2rem/1.2 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; letter-spacing: .12em; margin: 4px 0 8px; user-select: all; }
[hidden] { display: none !important; }
.screens.one { grid-template-columns: 1fr; }
video { width: 100%; aspect-ratio: 3 / 2; background: #000; border-radius: 6px; display: block; object-fit: contain; }